/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

Cu.import("resource://gre/modules/Log.jsm");
Cu.import("resource://services-sync/constants.js");
Cu.import("resource://services-sync/service.js");
Cu.import("resource://services-sync/policies.js");
Cu.import("resource://services-sync/util.js");
Cu.import("resource://testing-common/services/sync/utils.js");

Log.repository.rootLogger.addAppender(new Log.DumpAppender());

function login_handling(handler) {
  return function(request, response) {
    if (has_hawk_header(request)) {
      handler(request, response);
    } else {
      let body = "Unauthorized";
      response.setStatusLine(request.httpVersion, 401, "Unauthorized");
      response.setHeader("Content-Type", "text/plain");
      response.bodyOutputStream.write(body, body.length);
    }
  };
}

add_task(async function test_offline() {
  try {
    _("The right bits are set when we're offline.");
    Services.io.offline = true;
    Assert.ok(!(await Service.login()));
    Assert.equal(Service.status.login, LOGIN_FAILED_NETWORK_ERROR);
    Services.io.offline = false;
  } finally {
    Svc.Prefs.resetBranch("");
  }
});

function setup() {
  let janeHelper = track_collections_helper();
  let janeU      = janeHelper.with_updated_collection;
  let johnHelper = track_collections_helper();
  let johnU      = johnHelper.with_updated_collection;

  let server = httpd_setup({
    "/1.1/johndoe/info/collections": login_handling(johnHelper.handler),
    "/1.1/janedoe/info/collections": login_handling(janeHelper.handler),

    // We need these handlers because we test login, and login
    // is where keys are generated or fetched.
    // TODO: have Jane fetch her keys, not generate them...
    "/1.1/johndoe/storage/crypto/keys": johnU("crypto", new ServerWBO("keys").handler()),
    "/1.1/johndoe/storage/meta/global": johnU("meta", new ServerWBO("global").handler()),
    "/1.1/janedoe/storage/crypto/keys": janeU("crypto", new ServerWBO("keys").handler()),
    "/1.1/janedoe/storage/meta/global": janeU("meta", new ServerWBO("global").handler())
  });

  return server;
}

add_task(async function test_not_logged_in() {
  let server = setup();
  try {
    await Service.login();
    Assert.ok(!Service.isLoggedIn, "no user configured, so can't be logged in");
    Assert.equal(Service._checkSync(), kSyncNotConfigured);
  } finally {
    Svc.Prefs.resetBranch("");
    await promiseStopServer(server);
  }
});

add_task(async function test_login_logout() {
  enableValidationPrefs();

  let server = setup();

  try {
    _("Force the initial state.");
    Service.status.service = STATUS_OK;
    Assert.equal(Service.status.service, STATUS_OK);

    _("Try logging in. It won't work because we're not configured yet.");
    await Service.login();
    Assert.equal(Service.status.service, CLIENT_NOT_CONFIGURED);
    Assert.equal(Service.status.login, LOGIN_FAILED_NO_USERNAME);
    Assert.ok(!Service.isLoggedIn);

    _("Try again with a configured account");
    await configureIdentity({ username: "johndoe" }, server);
    await Service.login();
    Assert.equal(Service.status.service, STATUS_OK);
    Assert.equal(Service.status.login, LOGIN_SUCCEEDED);
    Assert.ok(Service.isLoggedIn);

    _("Profile refresh edge case: FxA configured but prefs reset");
    await Service.startOver();
    let config = makeIdentityConfig({ username: "johndoe" }, server);
    config.fxaccount.token.endpoint = server.baseURI + "/1.1/" + config.username + "/";
    configureFxAccountIdentity(Service.identity, config);

    await Service.login();
    Assert.equal(Service.status.service, STATUS_OK);
    Assert.equal(Service.status.login, LOGIN_SUCCEEDED);
    Assert.ok(Service.isLoggedIn);

    _("Logout.");
    Service.logout();
    Assert.ok(!Service.isLoggedIn);

    _("Logging out again won't do any harm.");
    Service.logout();
    Assert.ok(!Service.isLoggedIn);

  } finally {
    Svc.Prefs.resetBranch("");
    await promiseStopServer(server);
  }
});

add_task(async function test_login_on_sync() {
  enableValidationPrefs();

  let server = setup();
  await configureIdentity({ username: "johndoe" }, server);

  try {
    _("Sync calls login.");
    let oldLogin = Service.login;
    let loginCalled = false;
    Service.login = async function() {
      loginCalled = true;
      Service.status.login = LOGIN_SUCCEEDED;
      this._loggedIn = false; // So that sync aborts.
      return true;
    };

    await Service.sync();

    Assert.ok(loginCalled);
    Service.login = oldLogin;

    // Stub mpLocked.
    let mpLocked = true;
    Utils.mpLocked = () => mpLocked;

    // Stub scheduleNextSync. This gets called within checkSyncStatus if we're
    // ready to sync, so use it as an indicator.
    let scheduleNextSyncF = Service.scheduler.scheduleNextSync;
    let scheduleCalled = false;
    Service.scheduler.scheduleNextSync = function(wait) {
      scheduleCalled = true;
      scheduleNextSyncF.call(this, wait);
    };

    // Autoconnect still tries to connect in the background (useful behavior:
    // for non-MP users and unlocked MPs, this will detect version expiry
    // earlier).
    //
    // Consequently, non-MP users will be logged in as in the pre-Bug 543784 world,
    // and checkSyncStatus reflects that by waiting for login.
    //
    // This process doesn't apply if your MP is still locked, so we make
    // checkSyncStatus accept a locked MP in place of being logged in.
    //
    // This test exercises these two branches.

    _("We're ready to sync if locked.");
    Service.enabled = true;
    Services.io.offline = false;
    Service.scheduler.checkSyncStatus();
    Assert.ok(scheduleCalled);

    _("... and also if we're not locked.");
    scheduleCalled = false;
    mpLocked = false;
    Service.scheduler.checkSyncStatus();
    Assert.ok(scheduleCalled);
    Service.scheduler.scheduleNextSync = scheduleNextSyncF;

    // TODO: need better tests around master password prompting. See Bug 620583.

    mpLocked = true;

    // Testing exception handling if master password dialog is canceled.
    // Do this by monkeypatching.
    Service.identity.unlockAndVerifyAuthState = () => Promise.resolve(MASTER_PASSWORD_LOCKED);

    let cSTCalled = false;
    let lockedSyncCalled = false;

    Service.scheduler.clearSyncTriggers = function() { cSTCalled = true; };
    Service._lockedSync = async function() { lockedSyncCalled = true; };

    _("If master password is canceled, login fails and we report lockage.");
    Assert.ok(!(await Service.login()));
    Assert.equal(Service.status.login, MASTER_PASSWORD_LOCKED);
    Assert.equal(Service.status.service, LOGIN_FAILED);
    _("Locked? " + Utils.mpLocked());
    _("checkSync reports the correct term.");
    Assert.equal(Service._checkSync(), kSyncMasterPasswordLocked);

    _("Sync doesn't proceed and clears triggers if MP is still locked.");
    await Service.sync();

    Assert.ok(cSTCalled);
    Assert.ok(!lockedSyncCalled);

    // N.B., a bunch of methods are stubbed at this point. Be careful putting
    // new tests after this point!

  } finally {
    Svc.Prefs.resetBranch("");
    await promiseStopServer(server);
  }
});
